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Static strain and vibration characteristics of a metal semimonocoque helicopter tail cone of moderate sizeThe results are presented of an analytic and experimental research program involving a Sikorsky S-55 helicopter tail cone directed ultimately to the improved structural analysis of airframe substructures typical of moderate sized helicopters of metal semimonocoque construction. Experimental static strain and dynamic shake-testing measurements are presented. Correlation studies of each of these tests with a PC-based finite element analysis (COSMOS/M) are described. The tests included static loadings at the end of the tail cone supported in the cantilever configuration as well as vibrational shake-testing in both the cantilever and free-free configurations.
Document ID
19910022365
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Bielawa, Richard L. (Rensselaer Polytechnic Inst. Troy, NY, United States)
Hefner, Rachel E. (Rensselaer Polytechnic Inst. Troy, NY, United States)
Castagna, Andre (Rensselaer Polytechnic Inst. Troy, NY, United States)
Date Acquired
September 6, 2013
Publication Date
June 1, 1991
Subject Category
Structural Mechanics
Report/Patent Number
NAS 1.26:187576
NASA-CR-187576
Accession Number
91N31679
Funding Number(s)
CONTRACT_GRANT: NAG1-807
CONTRACT_GRANT: DAAG29-82-K-0093
CONTRACT_GRANT: NSF MSM-88-06257
PROJECT: RTOP 505-63-36-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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